Europe

• Sherlock Holmes Klubben - The Danish BSI
• SherlockHolmes.se, Sweden
• The Swedish Pathological Society
• Sherlock Holmes Society of London, England
• The Poor Folk upon the Moor, Dartmoor, England
• 221B -- Deutscher Sherlock Holmes Club, Germany
• Von Herder Airguns Ltd., Germany
• SSHF - Société Sherlock Holmes de France
• Les Evadés de Dartmoor, France
• Cercle litteraire de l'Escarboucle Bleue (France)
• The Florentine Holmes, Italy

Asien and Australien

• The Sydney Passengers
• Sherlock Holmes Society of Western Australia
• The common Loafers (Malaysia)

USA

• The Arthur Conan Doyle Society.
• The The Noble And Most Singular Order Of The Blue Carbuncle, Portland Oregon
• The The Sound of the Baskervilles, Western Washington.
• The Sherlock Holmes Society of Austin, Texas
• Sherlock Peoria
• Nashville Scholars of The Three Pipe Problems of Nashville hosts Welcome Holmes mailing list
• The Diogenes Club
• The Afghanistan Perceivers, Tulsa, Oklahoma
• The White Rose Irregulars, Reading PA
• The Blustering Gales from the South-West, Torrance, CA
• Harpooners of the Sea Unicorn, St Charles, Missouri
• The Notorious Canary-Trainers, Madison, WI
• The Society of the Naval Treaty, Annapolis, MD
• The Head Llamas
• The Ribston~Pippins, Detroit
• The Mini-Tonga Scion Society, New York
• Sherlock Holmes Pipe Club of Boston
• Mrs. Hudson's Cliffdwellers of New Jersey
• The Baker Street Breakfast Club, Vermont
• Mycroft's League, Philadelphia, Pennsylvania
• Watson's Tin Box, Ellicott City, Maryland
• The Sons of the Copper Beeches, Philadelphia, Pennsylvania
• The Three Garridebs of Westchester County, New York